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Finding the Fourth Proportional to 478,814.99, 660,766.68 and 263,950.34

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Solution

The fourth proportional to 478,814.99, 660,766.68 and 263,950.34 is: 364,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,814.99 : 660,766.68 = 263,950.34 : x
  2. Step 2: Convert to fraction form
    478,814.99/660,766.68 = 263,950.34/x
  3. Step 3: Cross multiply
    478,814.99x = 660,766.68 × 263,950.34
  4. Step 4: Simplify right side
    478,814.99x = 174,409,586,542.84
  5. Step 5: Solve for x
    x = 174,409,586,542.84/478,814.99
  6. Step 6: Final answer
    x = 364,252.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.